Improvement in warplng-sviackines



L. H. TUBI E.

ing-Machines.

No. 134,331. Patented Dec. 2-4, 1872.

Wifnwaw,

AM PHDIO-LIT/ UBRAPH/L camzrossumvs PROCESS.)

LEROY II. TOBIE, OF PORTLAND, ASSIGNOR TO LEWISTON MACHINE COM- PANY, OF LEWISTON, MAINE.

EMPRQVEMENT IN wfiR lhfi MACl-iihliS.

Specification forming part of Letters Patent No. 1341,3251, dated December 24, 1872.

To all whom it may concern:

Be it known that I, LEROY H. TQBIE, of Portland, Cumberland county, State of Maine,

- have invented an Improved Starting-Motion for Warping-ltlachines, of which the following is a specification:

The object of my invention is a starting device of simple and economical construction, for starting the cylinder of what is known as a slasher warper at a very slow rate of speed, in order to take up the slack of the threads, and start the bobbins without risk of breaking any of the ends, and for afterward increasing the speed to the required rate.

I attain this object in the manner best observed in the perspective view, Figure 1, by so combining a supplemental shaft, B, having two gear-wheels and a clutch, with the cylinder-shaft A, also furnished with geanwh'eels and a clutch, that on first starting the warper, the rapid rotary movement of the drivingpnlley a may be transmitted through the gearwheels I), c, d, and e to the cylinder-shaft A, which will consequently be turned very slowly, and so that the transmittinggear may be afterward thrown off and the cylinder-shaft turned directly by, and at the same rapid rate as, the driving-pulley. I

In order that my invention may be fully understood, I will now proceed to describe its construction and operation more in detail, reference being had to Fig. 1, and the sectional view, Fig. 2, of the accompanying drawing.

The pinion b is fast to the hub of the driving-pulley a, and gears into the cog-wheel a, which is keyed fast to its shaft B. On the latter is a ratchet-clutch, as, one section of which is operated by a clutch-lever, f, and can slide upon, but is prevented by a feather from turning independently of, the shaft. The other section of the clutch is secured to or forms part of the pinion d, and with the latter is permitted to turn loosely on the shaft. The said pinion d gears into the cog-wheel e, which is keyed fast to the cylinder-shaft A, the lat ter extending through and turning loosely in the hub of the pinion I) and pulley a, and having at its extreme end a friction-disk, y, adapted to and arranged to be held against a correspondingly-shaped recess of the drivingpulley.

The driving-pulley rotates constantly in the direction of the arrow, Fig. 1, and the warping-cylinder is started at the required slow rate of speed by bringing the two portions of the clutch w together, the friction-clutch having been previously thrown off, so that the motion of the pulley must be transmitted through the gear-wheels l), c, d, and e to the cylinder-shaft A, as indicated by the arrows in Fig. 1.

To increase the speed of the cylinder-shaft after the slack of the threads has been taken up and the bobbins started, the frictionclutch y is simply thrown into gear, when the shaft A and cylinder will be operated directly by, and at the same rapid rate as, the drivingpulley; and as the gear-wheel 6 will likewise be turned at the same rate, its movement will be transmitted to the loose pinion d, and half of the clutch connected thereto, which will be turned in the same direction as before, but at a speed so much greater than the other half of the clutch that the latter, owing to the di-" rection of the inclines of its ratchet-teeth, will be moved longitudinally on the shaft B, and

disengaged, as shown in Fig. 2.

I claim as my invention- The combination of the cylinder-shaft A, its gear-wheels b and e, and the clutch y with the shaft 13, its gear-wheels c and d, and clutch 00, all substantially as and for the purpose specified. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LEROY H. TOBIE.

Witnesses:

JAMES L. GRowELL, JO N YEATON, Jr. 

